impostress

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

from the GNU version of the Collaborative International Dictionary of English

n. A woman who imposes upon or deceives others.

from The Century Dictionary and Cyclopedia

n. A female impostor.

Etymologies

impostor +‎ -ess (Wiktionary)

Examples

A smile came to my face at the suggestion of that celebrated adventuress and mysterious impostress who had figured in the annals of Washington -- a fair Italian, so the rumor ran, who had come to this country to set up a claim, upon our credulity at least, as to being the descendant of none less than Amerigo Vespucci himself!